/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.geode.internal.offheap;

/**
 * Represents a slice of an OffHeapStoredObject.
 * A slice is a subsequence of the bytes stored in an OffHeapStoredObject.
 */
public class OffHeapStoredObjectSlice extends OffHeapStoredObject {
  private final int offset;
  private final int capacity;
  public OffHeapStoredObjectSlice(OffHeapStoredObject objectChunk, int position, int limit) {
    super(objectChunk);
    this.offset = objectChunk.getBaseDataOffset() + position;
    this.capacity = limit - position;
  }
  @Override
  public int getDataSize() {
    return this.capacity;
  }
  
  @Override
  protected long getBaseDataAddress() {
    return super.getBaseDataAddress() + this.offset;
  }
  @Override
  protected int getBaseDataOffset() {
    return this.offset;
  }
}